Button - old or new?

[NadiG]

It is 1,8 cm in diameters.

 

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[CRUSADER]

Same as the last 4 hole.

 

[ANTIQUARIAN]

I'm fairly certain that two-hole predate four hole buttons, so likely late-19thc.

Dave

 

[NadiG]

Thanks, certainly a 100% better than a new one!